91842501685 has 8 divisors (see below), whose sum is σ = 120230184096. Its totient is φ = 66794546640.

The previous prime is 91842501677. The next prime is 91842501703. The reversal of 91842501685 is 58610524819.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 91842501685 - 2³ = 91842501677 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 834931779 + ... + 834931888.

It is an arithmetic number, because the mean of its divisors is an integer number (15028773012).

Almost surely, 2^91842501685 is an apocalyptic number.

It is an amenable number.

91842501685 is a deficient number, since it is larger than the sum of its proper divisors (28387682411).

91842501685 is a wasteful number, since it uses less digits than its factorization.

91842501685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1669863683.

The product of its (nonzero) digits is 691200, while the sum is 49.

The spelling of 91842501685 in words is "ninety-one billion, eight hundred forty-two million, five hundred one thousand, six hundred eighty-five".